The SIM800L module needs special attention because it operates at 3.3V logic levels while Arduino uses 5V. We need a voltage divider circuit to protect the SIM800L from damage. If you are new to the ...

30 thoughts on “ Retro-fit Old Radio With Arduino And FM Module ” Galane says: July 2, 2015 at 1:09 am Where’s the Ard… oh, right. Report comment. Reply. lwatcdr says: ...

Sometimes people find it difficult to use the GSM Module for its basic functions like calling, texting etc., specifically with the Microcontrollers. So here we are going to build a Simple Mobile Phone ...

arduino gsm security alarm. Working of the system is very simple and self-explanatory. ... (or by another electronic module). After the “call” key (S2) operation, the call can be aborted by depressing ...

The module, or shield, was developed in conjunction with Telefónica’s Physical Internet Laboratory and is available to purchase. The open-source GSM Shield comes with a Telefónica SIM card ready to be ...

This smart security box is primarily developed using an open-source electronics platform named Arduino and Global System for Mobile (GSM) Communications module with Short Message Service (SMS). Based ...

Arduino has two new boards out which deliver connectivity – the Arduino MKR WAN 1300 (LoRa) and the Arduino MKR GSM 1400. The Arduino MKR WAN 1300 delivers LoRa low-power WAN connectivity, and the ...

Contribute to kashyapshyani/Security-System-using-Arduino-and-GSM-Module development by creating an account on GitHub.